Some types of cancer can run in families. For example, your risks of developing certain types of breast cancer, bowel cancer or ovarian cancer are higher if you have close relatives who developed the condition.

Some types of cancer can run in families. For example, your risks of developing certain types of breast cancer, bowel cancer or ovarian cancer are higher if you have close relatives who developed the condition.

This doesn’t mean you'll definitely get cancer if some of your close family members have it, but that you may have an increased risk of developing certain cancers compared to other people.

It’s estimated that only about 2 or 3 in every 100 cancers (2-3%) are associated with an inherited faulty gene.

there are two or more close relatives on the same side of the family (your mother’s or your father’s side) with the same type of cancer, or with particular types of cancer that are known to be linked – for example, breast and ovarian cancer or bowel and womb cancer

cancers are occurring at young ages (before the age of 40)

a close relative has had two different types of cancer (rather than one cancer that has spread)

You should contact your GP if some close family members have developed the types of cancer mentioned above and you’re worried that you might develop cancer yourself. They'll ask about your family history, and if they think there's a chance you have an increased risk of developing cancer, they'll refer you to a genetic counsellor, family cancer clinic or a cancer specialist.